CN1242127C - Method and special equipment for forming composite pile with multi-supporting disks and application thereof - Google Patents
Method and special equipment for forming composite pile with multi-supporting disks and application thereof Download PDFInfo
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- CN1242127C CN1242127C CN 200310115900 CN200310115900A CN1242127C CN 1242127 C CN1242127 C CN 1242127C CN 200310115900 CN200310115900 CN 200310115900 CN 200310115900 A CN200310115900 A CN 200310115900A CN 1242127 C CN1242127 C CN 1242127C
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Abstract
The present invention relates to a construction technology of a bearing pile in foundation engineering, a hollow preformed pile and a branch device and also relates to the application of the piles and the branch device, wherein the hollow preformed pile is special to the bearing pile and is provided with an outer branch body, and the branch device has the functions of material feeding, vibrating and outer branch body locating. The bearing pile is constructed by the method that the hollow preformed pile is matched with a sinking or pressing pile by an inner impact method or an inner press method, and then the matched pile is combined with a multi-branch disk filling pile of which the lower branch device is used as a force bearing disk at the bottom of the pile with the pile body extends out of the outer branch body to form branches. The multi-branch disk composite pile manufactured by the joint stress technology has the advantages of high bearing capacity, high quality and high efficiency.
Description
One. invention field: the present invention relates to the construction technology and the special equipment of bearing peg in the Foundation Design, belong to the construction foundation working field.
Two. background technology: existing stake type mainly is precast reinforced concrete piles and castinplace pile.The end resistance performance of preformed pile and tube-sinking cast-in-situ pile is more abundant, and the side resistance also has big potentiality.Underwater drilling or dried operation bored pile, its end resistance and side resistance all have big potentiality.For stake types such as compaction pile, pouring mortar pile, support disk pile have appearred in the potentiality of giving full play to end resistance and side resistance.But all there are some practical problems in these types.As many dish castinplace piles, the problem of existence is: stake end soil is no compacted, and the stake end has loosened soil, and end resistance performance is insufficient; May collapse hole, folder mud, pile body concrete quality be difficult for to guarantee; Generally need mud off, construction environment is relatively poor; Work efficiency is lower.Relate to the patent of branch or load dish, can be with reference to Chinese patent 89107846.0 " multiple-limb, load dish underpin concrete bearing peg ", " 95101207.X forming apparatus for foundation pile of multi-branch bearing disk ", 99118966.3,99102751.5 " formers that have the stake usefulness of branch and/or load dish " etc.
Three. summary of the invention: the objective of the invention is preformed pile and support disk pile are organically combined, finish pile-formation process, overcome aforementioned deficiency, make the novel stake of high-bearing, high-quality, high efficiency by the hollow preformed pile and the splitter of special use.
The object of the present invention is achieved like this:
Many dish compound pile piling methods according to the present invention proposes is characterized in that comprising the following steps:
(1). inner hit method cooperates heavy preformed pile:
1. put stake point (5), hollow preformed pile pile body (1) is in place;
2. adopt the stake machine pile sinking of being furnished with interior hammer (9);
3. when hammer (9) cooperates pile sinking in needing, interior hammer (9) is sling with wire rope (10);
4. decontrol wire rope (10), interior hammer (9) free-falling, hammering stake point (5) sinks stake point (5).The case pile point that can adopt sleeve pipe (6) and stake point (5) to combine in case of necessity is in case soil or water enter in the pile body (1);
5. with pile monkey (11) follow-up pile sinking body (1).Pile sinking point (5) hockets with pile sinking body (1);
6. pile sinking is only used interior hammer (9) pile sinking point (5) to predetermined absolute altitude, and the height of sinking should be greater than the working depth of splitter (26);
7. hammer (9) in proposing.
(2). interior platen press cooperates presses preformed pile:
1. put stake point (5), hollow preformed pile pile body (1) is in place;
2. adopt the Static pressure pile driver piling of being furnished with interior pressure pipe (13);
3. when pressure pipe (13) cooperates piling in needing, with pressure pipe (13) pile sinking point (5) in static pressure hammer (11) pressure;
4. with static pressure hammer (11) follow-up piling body (1), pile sinking point (5) hockets with piling body (1);
5. piling is only used interior pressure pipe (13) pile sinking point (5) to predetermined absolute altitude, and the height of sinking should be greater than the working depth of splitter (26);
6. pressure pipe (13) in proposing.
1. dish is propped up at inferior division device (26) to the stake end;
2. propose splitter (26), remove the earth on it;
3. descend harsh concrete or ordinary concrete.Following harsh concrete will descend interior hammer (9) to ram or interior pressure pipe (13) is pressed concrete.After ramming or having pressed, interior hammer (9) of proposition or interior pressure pipe (13).Following ordinary concrete, earlier with splitter (26) at the bottom of the stake, open vibrator (20) vibrated concrete, splitter (26) is carried at the limit that shakes by limit bottom, and controls top of concrete by lower sensor (21) and be no more than vibrator (20) bottom surface.
1. preformed pile pile body (1) nethermost outer support body (2) is aimed in last lower branch arm (19), (22) of splitter (26), and with its expenditure;
2. regain to go up lower branch arm (19), (22), on carry splitter (26);
3. concrete under splitter (26) limit is carried on the limit, is no more than the bottom surface of vibrator (20) with lower sensor (21) control top of concrete;
4. the following concrete while, open vibrator (20) vibrated concrete.A nethermost group of branches (7) construction finishes;
5. repeat the above-mentioned step of doing branch (7) from top to bottom along hollow preformed pile pile body (1), constructing to a uppermost group of branches (7) finishes.Splitter (26) is carried on the limit, concrete under the limit, and vibrate until the stake top in the limit, and the construction of more than one dish compound pile finishes.
For the soil property of easily collapse hole or rich groundwater, in the time of can propping up outside last lower branch arm (19), (22), following a certain amount of cement paste is done retaining wall, and hole, water inlet prevent to collapse.During following cement paste, be no more than the end face of upper sensor (17) by upper sensor (17) control cement paste end face.
Special-purpose hollow preformed pile according to piling method of the present invention is characterized in that:
1. Zhuan material is concrete or steel;
2. Zhuan profile is square or circular, polygonal;
3. stake is hollow, and hollow is circular or polygonal;
4. outer support body (2) is manufactured on pile body (1) with pile body (1), its same precast pile of inside and outside surface configuration (1), and both sides are straight or oblique; Be furnished with reinforcing bar and expose one section exposed steel bar (4) in the outer support body (2) of concrete; The inboard width of outer support body (2) is greater than the last lower branch arm (19) of splitter (26), the width of (22);
5. outer support body (2) is in twos axial symmetry to be established, and also can establish three in same absolute altitude center symmetry;
6. outer support body (2) is provided with many groups along precast pile (1) short transverse;
7. the periphery of support body (2) outside precast pile (1) is corresponding is provided with flute profile sheet iron plate (3).
According to the private branch device of piling method of the present invention, by tube connector (14), oil cylinder (18), vibrator (20) and upper and lower sensor (17), (21) are formed.It is characterized in that tube connector (14) is for passing oil cylinder (18) and last lower branch arm (19), (22), vertically certain altitude has a plurality of dog-houses (15) and has the hollow steel pipe to perforation (16) of wearing reinforcing bar at interval, it is provided with scale along short transverse, can undergauge and extensible below the end face at oil cylinder (18); Last lower branch arm (19), (22) are steels, and its external surface is provided with fin (23) or protruding the grabbing (24) that is used for to outer support body location; Vibrator (20) is contained in below the lower branch arm (22); Under the most next dog-house (15), upper sensor (17) is housed, lower sensor (21) is housed under the vibrator (20).
The preformed pile that many dish compound piles of the present invention adopt is hollow preformed pile (comprising steel pipe pile).Hollow precast reinforced concrete pile as square-outside and round-inside.Predetermined height on pile lining in certain altitude, the width range, is preset outer " weakness " link--outer support body (2) that props up in last lower branch arm (19), (22) of next step splitter (26) in the middle of the length of side.
What many dish compound piles adopted is special-purpose splitter (26).
Special-purpose hollow preformed pile body (1) and private branch device (2) and cooperation inner hit method or interior platen press heavy or stake are the keys of many dish compound pile pile-formation process.
The design of outer support body (2) should be satisfied following requirement:
1. outer support body (2) width and big highly as far as possible, the big more contribution to bearing capacity is big more;
2. outer support body (2) width is greater than splitter (26) and goes up lower branch arm (19), (22) width, is not with mud to guarantee lower branch arm (19), (22);
3. when outer support body (2) height will guarantee to prop up outside lower branch arm (19), (22), other place of precast pile (1) was not bumped in last lower branch arm (19), (22);
4. outer support body (2) upper and lower end and both sides will become integral body with precast pile (1) when pile sinking, can throw off with precast pile (1) again when propping up outward;
5. outer support body (2) respective branches device (26) is gone up lower branch arm (19), (22) connecting axle place, to make outer support body (2) outwards moving at this two sections, but can not disconnect.These two sections itself can break, but can not be broken.
6. the first five point must be to guarantee that precast pile (1) pile sinking is a prerequisite.
For the precast pile (1) of square-outside and round-inside, outer support body (2) generally is symmetrical arranged in twos, is in-line after the expenditure; Also can be provided with on other both sides, be orthogonal two in-lines after the expenditure.These two in-lines can be cross at an absolute altitude, also can stagger.Anti-fight or anti-pressure ability when staggering to raising precast pile (1) pile sinking are useful, the good arrangement of reinforcement of the pile body that do not stagger.
For pipe stake or hexagonal piles, outer support body (2) can be established three at same absolute altitude, is the Y font after the expenditure.
The both sides of outer support body (2) can be straight, also can be oblique, outer big in little, oblique easy expenditure.
Outer support body (2) is wanted arrangement of reinforcement during for concrete.The arrangement of reinforcement support body (2) of can not going out also can expose outer support body (2) slightly.The globality of exposed steel bar (4) precast pile (1) when being beneficial to pile sinking, and outside during outer of support body (2), can extract again.
Corresponding outer support body (2) periphery of precast pile (1) is provided with flute profile sheet iron plate (3) slider, is beneficial to outer of outer support body (2), and precast pile (1) is played booster action again at this position.
The splitter in past generally is made up of support arm, oil cylinder, tube connector three parts.The splitter (26) that is used for many dish compound piles should have can pass through splitter (26) oil cylinder (18) and last lower branch arm (19), (22) downward fluid concrete, and the function that this concrete is vibrated, can be outer support body (2) location again simultaneously,, improve work efficiency to guarantee pile quality.For this reason and specialized designs private branch device (26) shown in Figure 6.
In the middle of the splitter (26) also is tube connector (14), and tube connector (14) is opened a dog-house (15) every certain altitude more than oil cylinder (18), and concrete is knocked down from dog-house (15).
Tube connector (14) every certain altitude have 15 to 30 millimeters to wearing circular hole (16), wear reinforcing bar, rotate splitter (26).
Tube connector (14) can spreading.
Tube connector (14) passes from oil cylinder (18) and last lower branch arm (19), (22) centre.Tube connector (14) can undergauge below the end face at oil cylinder (18), and the internal diameter behind the undergauge generally should be not less than 150 millimeters, so that concrete falls is smooth and easy.
For ease of using, tube connector (14) can be established scale more than oil cylinder (18), goes up lower branch arm (19), (22) position on the degree of depth so that accurately grasp.
Splitter (26) upper branch arm (19) upper end links to each other with oil cylinder (18) lower end, and lower branch arm (22) lower end links to each other with tube connector (14) bottom, upper and lower support arm (19), (22) interconnection, and this three place is axle and connects.After oil cylinder (18) refuels, outer of last lower branch arm (19), (22).
Last lower branch arm (19), (22) outside are established fin (23) or protruding grabbing (24) across a certain distance.When propping up outside last lower branch arm (19), (22), fin (23) or protruding grabbing (24) are eaten into outer support body (2), realize that splitter (26) is the location of outer support body (2), avoid scurrying the position about outer support body (2).
Last lower branch arm (19), (22) they generally are two groups, and axial symmetry is established, also can three groups, and the center symmetry is established, and is in-line or Y font after the expenditure.
Vibrator (20) is located at the lower end of tube connector (14).After concrete is cast, open vibrator (20) vibrated concrete, make it closely knit, enter simultaneously in the branch (7).
Splitter (26) descends the upper sensor of installing under the dog-house (15) (17) in order to monitoring cement paste height most, and the following lower sensor of installing (21) of vibrator (20) is in order to monitoring concrete height.
With above-mentioned hollow preformed pile body (1) and splitter (26), many dish compound piles just can have been constructed with preceding method.
The stake of making thus has many of branch (7) to coil the stake that castinplace piles (8) combine for hollow preformed pile body (1) and stake end have load dish (25), pile body, so be called many dish compound piles.
Obviously, the acting in conjunction of the end resistance of the resistance of the end of precast pile (1), side resistance and many dish castinplace pile (8) load dishes (25), the end resistance of branch (7), side resistance, many dish compound piles must have very high bearing capacity.
Many dish compound piles also are good uplift piles.
The concrete of many dish compound piles perfusion can further improve the interior cooperative reliability of stud as adopting slightly expanded concrete better.
The reinforcing bar of many dish compound piles generally fits in the precast pile (1).As needs, in the uppermost branch of castinplace pile (7) but more than also arrangement of reinforcement.When reinforcing cage was grown branch (7), in the length of reinforcing cage scope, available Superfluid state concrete, treat that splitter (26) proposes after, shake into reinforcing cage.
With giving unnecessary details, many dish compound piles must not be high-quality, high efficiency.
The soil of hole or rich groundwater if easily collapse, in the time of can propping up outside last lower branch arm (19), (22), following a certain amount of cement paste is done retaining wall, and prevent to collapse hole, water inlet also can be made many dish compound piles.The cement paste height is monitored with upper sensor (17).
Therefore, many dish compound piles are very widely for the scope of application of soil property.
After hollow preformed pile body (1) was established outer support body (2), hammering or static pressure all might make pile body (1) destroy, and cooperate the method for pile sinking with hammer (9) in aforementioned--inner hit method and interior pressure pipe (13) cooperate the method for piling--, and interior platen press all can address this problem.
Inner hit method and interior platen press, all be that stake point (5) and pile body (1) are sunk respectively, heavy or pressure pile resistance has separately reduced the anti-hammering ability of pile body (1) or the requirement of anti-pressure ability less than drag overall, and hollow preformed pile body (1) establishes that outer support body (2) back sinks or piling is just no problem.The essentially no vibration of interior platen press, noiselessness are mainly used in vibration or noise conditional place construction.
The hollow pile of various cross sections such as prefabricated reinforced concrete hollow pile, prestressed concrete pipe pile, steel pipe pile, various materials, after the stake end is put precast concrete pile point or piling bar point, when being difficult to heavy or piling, can adopt inner hit method to cooperate diesel hammer or hydraulic hammer or static pressure hammer and the heavy or piling of interior platen press cooperation static pressure hammer running into hard interbedded layer or hard bearing stratum.In some cases, pile for prestressed pipe adopts prestressing force and high-strength concrete also just to be out of use, and steel pipe pile also need not have been strengthened for this reason.
In addition, adopt inner hit method or interior platen press,, so, the requirement of stake function power also reduced because heavy or pressure pile resistance has been decomposed, just can be with the paxilla machine heavy or pressure timber pile.
In sum, many dish compound piles have good technical benefit and economic benefit, and application prospect is very wide.
Four. accompanying drawing and drawing explanation: Fig. 1 is a hollow preformed pile profile facade; Fig. 2 is the preformed pile fragmentary detail view at support body place outside, wherein, (a) is longitudinal plan, (b) is drawing in side sectional elevation, (c) is outer support body axonometric drawing; Fig. 3 is branch's detail drawing; Fig. 4 is the case pile point; Fig. 5 passes the longitudinal plan of diesel hammer or hydraulic hammer or static pressure hammer for interior hammer; Fig. 6 is a splitter, and Fig. 7 is a splitter support arm fragmentary detail view, wherein, and (a) for the outer elevation of fin is arranged, (b) for protruding outer elevation of grabbing is arranged; Fig. 8 is many dish compound pile profile facades; Fig. 9 joins interior pressure pipe sketch for Static pressure pile driver.
Among the figure:
1. hollow preformed pile pile body (abbreviation pile body) 11. diesel hammers or hydraulic hammer or static pressure are hammered 21. lower sensors into shape
2. outer support body 12. Static pressure pile drivers 22. lower branch arms
3. pressure pipe 23. fins in the flute profile sheet iron plate 13.
4. exposed steel bar 14. tube connectors 24. protruding grabbing
The stake sharp 15. dog-houses, 25. load dishes
6. sleeve pipe 16. reinforcing bar jacks (to perforation) 26. splitters
7. branch's 17. upper sensors
8. castinplace pile 18. oil cylinders
9. interior hammer 19. upper branch arms
10. wire rope 20. vibrators
Five. embodiment: the construction work of many dish compound piles of the present invention is adopted on the basis, and its foundation soil is plastic to the isabelline silty clay of moulding state firmly, designing requirement bearing capacity of single pile characteristic value 3000KN.Its hollow preformed pile body (1) is a steel concrete, is shaped as square-outside and round-inside, 18 meters of length, 500 millimeters of the outer length of sides, 400 millimeters of internal diameters, outer support body (2) edge is vertically established five groups, and per three meters one group, four every group, middle one of every limit, outer support body (2) is wide 200 millimeters, and is high 800 millimeters.Splitter (26) tube connector (14) at oil cylinder (18) with 220 millimeters of top external diameters, below 160 millimeters, be provided with five dog-houses (15), 2.5 meters of spacings.360 millimeters of splitter (26) oil cylinder (18) external diameters are high 800 millimeters.Last lower branch arm (19), (22) axial symmetry are established two groups, and upper and lower support arm (19), (22) are wide 150 millimeters, and be long each 600 millimeters, is provided with fin (23) twice of 100 millimeters of spacings.
Employing is furnished with top pressing type Static pressure pile driver (12) piling of interior hammer (9), and the stake point is case pile point (5), (6).The stake point adopts inner hit method to cooperate pile sinking, to precast pile (1) top and ground flat after entering and moulding one meter on layer firmly.Use interior hammer (9) again stake point (5), (6) to be avaled 1.5 meters then, hammer (9) in proposing, inferior division device (26) is made load dish (25) on earth.1.5 meters of load dish (25) external diameters, high 800 millimeters, use harsh concrete.Splitter (26) is proposed, ram harsh concrete with interior hammer (9), after having rammed, hammer (9) in proposing, inferior division device (26) is to bottom one group of outer support body (2) absolute altitude, with 350 millimeters of relative two outer support bodies (2) expenditures, lower branch arm in the withdrawal (19), (22) again, after turning 90 degrees, splitter (26) again other two outer support bodies (2) are paid 350 millimeters, lower branch arm in the withdrawal (19), (22).Following ordinary concrete to lower sensor (21) is located, and drives vibrator (20), and splitter (26) is carried at the limit that shakes by limit bottom, finishes first group of branches (7)., repeat aforementioned process from bottom to top, to a uppermost group of branches (7), continue the limit bottom limit that shakes then and carry splitter (26) to precast pile (1) top, the construction of more than one dish compound pile finishes.
Claims (5)
1. many dish compound pile piling methods is characterized in that comprising the following steps:
Step 1, heavy preformed pile:
(1). inner hit method cooperates heavy preformed pile:
A. put stake point (5), hollow preformed pile body (1) is in place;
B. adopt the stake machine pile sinking of being furnished with interior hammer (9);
When c. needing interior hammer (9) to cooperate pile sinking, interior hammer (9) is sling with wire rope (10);
D. decontrol wire rope (10), interior hammer (9) free-falling, hammering stake point (5) sinks stake point (5); The case pile point that can adopt sleeve pipe (6) and stake point (5) to combine in case of necessity;
E. use pile monkey (11) follow-up pile sinking body (1); Pile sinking point (5) hockets with pile sinking body (1);
F. pile sinking is only used interior hammer (9) pile sinking point (5) to predetermined absolute altitude, and the height of sinking should be greater than the working depth of splitter (26);
G. hammer (9) in proposing;
(2). interior platen press cooperates heavy preformed pile:
A. put stake point (5), hollow preformed pile body (1) is in place;
B. adopt the Static pressure pile driver piling of being furnished with interior pressure pipe (13);
When c. needing interior pressure pipe (13) to cooperate piling, press interior pressure pipe (13) pile sinking point (5) with static pressure hammer (11);
D. with static pressure hammer (11) follow-up piling body (1), pile sinking point (5) hockets with piling body (1);
E. piling is only used interior pressure pipe (13) pile sinking point (5) to predetermined absolute altitude, and the height of sinking should be greater than the working depth of splitter (26);
F. pressure pipe (13) in proposing;
Step 2, construction load dish:
A. dish is propped up at inferior division device (26) to the stake end;
B. propose splitter (26), remove the earth on it;
C. descend harsh concrete or ordinary concrete; Following harsh concrete will descend interior hammer (9) to ram or interior pressure pipe (13) is pressed concrete; After ramming or having pressed, interior hammer (9) of proposition or interior pressure pipe (13); Following ordinary concrete, earlier with splitter (26) at the bottom of the stake, open vibrator (20) vibrated concrete, splitter (26) is carried at the limit that shakes by limit bottom, and controls top of concrete by lower sensor (21) and be no more than vibrator (20) bottom surface;
Step 3, do branch:
A. precast pile (1) nethermost outer support body (2) is aimed in last lower branch arm (19), (22) of splitter (26), and with its expenditure;
B. regain to go up lower branch arm (19), (22), on carry splitter (26);
C. concrete under splitter (26) limit is carried on the limit, is no more than the bottom surface of vibrator (20) with lower sensor (21) control top of concrete;
D. the following concrete while, open vibrator (20) vibrated concrete; A nethermost group of branches (7) construction finishes;
E. repeat the above-mentioned step of doing branch (7) from top to bottom along hollow preformed pile body (1), constructing to a uppermost group of branches (7) finishes; Splitter (26) is carried on the limit, concrete under the limit, and vibrate until the stake top in the limit, and the construction of a pile finishes.
2. according to the piling method of claim 1, its feature also is the soil property for easily collapse hole or rich groundwater, and in the time of can propping up outside last lower branch arm (19), (22), following a certain amount of cement paste is done retaining wall, and hole, water inlet prevent to collapse; During following cement paste, be no more than the end face of upper sensor (17) by upper sensor (17) control cement paste end face.
3. according to the special-purpose hollow preformed pile of the piling method of claim 1, it is characterized in that:
A. Zhuan material is concrete or steel;
B. Zhuan profile is square or circular, polygonal;
C. stake is hollow, and hollow is circular or polygonal;
D. outer support body (2) is manufactured on pile body (1) with pile body (1), its same precast pile of inside and outside surface configuration (1), and both sides are straight or oblique;
E. be furnished with reinforcing bar and expose one section exposed steel bar (4) in the outer support body (2) of concrete;
F. the inboard width of outer support body (2) is greater than the last lower branch arm (19) of splitter (26), the width of (22);
G. outer support body (2) is in twos axial symmetry to be established, and also can establish three in same absolute altitude center symmetry;
H. outer support body (2) is provided with many groups along precast pile (1) short transverse;
I. the periphery of support body (2) outside precast pile (1) is corresponding is provided with flute profile sheet iron plate (3).
4. according to the private branch device of the piling method of claim 1, by tube connector (14), oil cylinder (18), vibrator (20) and upper and lower sensor (17), (21) are formed, it is characterized in that tube connector (14) is for passing oil cylinder (18) and last lower branch arm (19), (22), vertically certain altitude has a plurality of dog-houses (15) and has the hollow steel pipe to perforation (16) of wearing reinforcing bar at interval, it is provided with scale along short transverse, can undergauge and extensible below the end face at oil cylinder (18); Last lower branch arm (19), (22) are steels, and its external surface is provided with fin (23) or protruding the grabbing (24) that is used for to outer support body location; Vibrator (20) is contained in below the lower branch arm (22); Under the most next dog-house (15), upper sensor (17) is housed, lower sensor (21) is housed under the vibrator (20).
5. according to the piling method of claim 1, it is characterized in that described inner hit method cooperates the method for diesel hammer or hydraulic hammer or static pressure hammer and the heavy preformed pile of interior platen press cooperation static pressure hammer also to can be used for the pile sinking of conventional hollow pile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310115900 CN1242127C (en) | 2003-12-09 | 2003-12-09 | Method and special equipment for forming composite pile with multi-supporting disks and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310115900 CN1242127C (en) | 2003-12-09 | 2003-12-09 | Method and special equipment for forming composite pile with multi-supporting disks and application thereof |
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| Publication Number | Publication Date |
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| CN1546802A CN1546802A (en) | 2004-11-17 |
| CN1242127C true CN1242127C (en) | 2006-02-15 |
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| CN 200310115900 Expired - Fee Related CN1242127C (en) | 2003-12-09 | 2003-12-09 | Method and special equipment for forming composite pile with multi-supporting disks and application thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392449A (en) * | 2011-10-13 | 2012-03-28 | 上海振中机械制造有限公司 | Device and method for settling concrete precast pipe pile by combined action of vibration and impact |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105369805B (en) * | 2015-12-04 | 2017-07-07 | 吴保全 | The squeezed enhancing stake machine of static pressure |
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2003
- 2003-12-09 CN CN 200310115900 patent/CN1242127C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392449A (en) * | 2011-10-13 | 2012-03-28 | 上海振中机械制造有限公司 | Device and method for settling concrete precast pipe pile by combined action of vibration and impact |
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| Publication number | Publication date |
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| CN1546802A (en) | 2004-11-17 |
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